<!DOCTYPE html>
<html>

<head>
	<meta charset="utf-8">
	<title>菜鸟教程(runoob.com)</title>
	<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js">
	</script>
	<script>
		$(document).ready(function () {
			$("button").click(function () {
				$("#div1").load("/try/ajax/demo_test.txt");
			});
		});
	</script>
</head>

<body>

	<div id="div1">
		<h2>使用 jQuery AJAX 修改文本内容</h2>
	</div>
	<button>获取外部内容</button>

</body>

</html>